ML16342A981

Enercon - Part 21 Notification - Design Basis Errors Using FLO-2D Software

ML16342A981
Person / Time
Site:	Perry
Issue date:	11/23/2016
From:	Eggemeyer N Enercon
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML16342A981 (3)

Text

1112312016 U.S. Nuclear Regulatory Commission Operations Center Event Report Pagel Part 21 (PAR) Event# 52394 Rep Org: ENERCON Notification Date I Time: 11/23/2016 11 :56 (EST)

Supplier: ENERCON Event Date I Time: 09/28/2016 (EST}

Last Modification: 11/23/2016 Region: 1 Docket#:

City: KENNESAW Agreement State: Yes County: License#:

State: GA NRC Notified by: NICK EGGEMEYER Notifications: JAMES DWYER R1DO HQ Ops Officer: MARK ABRAMOVITZ AARON McGRAW R3DO Emergency Class: NON EMERGENCY PART 21/50.55 REACTORS EMAIL 10 CFR Section:

21.21 (a)(2) INTERIM EVAL OF DEVIATION PART-21 NOTIFICATION - DESIGN BASIS ERRORS USING FL0-2D SOFTWARE The following report was received via e-mail:

"This letter serves as an Interim Report in accordance with 10 CFR 21.21 pertaining to a potential defect associated with a design basis calculation delivered to First Energy Nuclear Operating Company's Perry Nuclear Power Plant. Subsequent to delivering this calculation, FL0-20 software errors were identified which resulted in erroneous outputs that affect the local intense precipitation calculation. These errors were discovered on September 28, 2016, at which time, ENERCON generated a Corrective Action Report (CAR) to address the issue.

ENERCON has initiated a reevaluation of the calculation using the latest version of the software that will correct the errors in the calculation.

"An evaluation of the reportability of this issue in accordance with 10 CFR Part 21 is not able to be completed within the 60-day evaluation period due the need to verify and validate the latest version of the software and then complete all the analysis required for updating the calculation. This evaluation is being tracked by CAR 2016-0335 and will be completed no later than February 10, 2017.

"If you have any questions or need further clarifying information, please contact Nick Eggemeyer, Corporate Quality Assurance Manager, at (770) 590-2031."

Hoc, HOOX From: Nick Eggemeyer < neggemeyer@enercon.com >

Sent: Wednesday, November 23, 2016 11:56 AM To: Hoc, HOOX

Subject:

[External_Sender] 10 CFR Part 21 Interim Report Attachments: 10CFR Part 21 Interim Report - Perry Nuclear Plant Calculation Error.pdf To: NRC Operations Center Attached find a 10 CFR Part 21 Interim Report regarding a design basis calculation error using FL0-20 software.

Please acknowledge receipt of this email.

Best regards,

~~

Corporate Quality Assurance Manager 500 TownPark Lane Kennesaw, GA 30144 Office: 770.590.2031 Cell: 678.800.3630

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F.J ENERCON Excellence-Every project Every day.

Timothy P. Cleary Vice President 500 TownPark Lane Kennesaw, GA 30144 678-354-8359 Office 910-547-2800 Mobile November 23, 2016 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001

SUBJECT:

10 CPR 21 Interim Report Regarding Design Basis Calculation Error Using FL0-2D Software This letter serves as an Interim Report in accordance with 10 CPR 21.21 pertaining to a potential defect associated with a design basis calculation delivered to First Energy Nuclear Operating Company's Perry Nuclear Power Plant. Subsequent to delivering this calculation, FL0-2D software errors were identified which resulted in erroneous outputs that affect the local intense precipitation calculation. These errors were discovered on September 28, 2016, at which time ENERCON generated a Corrective Action Report (CAR) to address the issue.

ENERCON has initiated a reevaluation of the calculation using the latest version of the software that will correct the errors in the calculation.

An evaluation of the reportability of this issue in accordance with 10 CPR Part 21 is not able to be completed within the 60-day evaluation period due the need to verify and validate the latest version of the software and then complete all the analysis required for updating the calculation. This evaluation is being tracked by CAR 2016-0335 and will be completed no later than February 10, 2017.

If you have any questions or need further clarifying information, please contact Nick Eggemeyer, Corporate Quality Assurance Manager, at (770) 590-2031.

Respectfully, Timothy P. Cleary Vice President Cc: John D. Richardson, President Robert H. Bryan, Chief Operating Officer Jim J. Gannon, Chief Nuclear Officer Nick C. Eggemeyer, Corporate QA Manager 500 Townpark Lane Suite 275 Kennesaw, GA 30144 phone 770.919.1930 fax 770.919.1932 enercon.com